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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1874 | 1 |
| 1882 | 1 |
| 1884 | 1 |
| 1886 | 6 |
| 1890 | 1 |
| 1891 | 2 |
| 1911 | 1 |
| 1914 | 1 |
| 1919 | 1 |
| 1920 | 2 |
| 1921 | 2 |
| 1924 | 1 |
| 1925 | 1 |
| 1928 | 1 |
| 1929 | 2 |
| 1930 | 1 |
| 1931 | 2 |
| 1932 | 2 |
| 1933 | 4 |
| 1934 | 3 |
| 1935 | 3 |
| 1936 | 1 |
| 1938 | 1 |
| 1940 | 1 |
| 1947 | 1 |
| 1948 | 1 |
| 1949 | 1 |
| 1950 | 1 |
| 1953 | 1 |
| 1955 | 1 |
| 1958 | 1 |
| 1967 | 1 |
| 1970 | 1 |
| 1971 | 1 |
| 1972 | 1 |
| 1975 | 4 |
| 1976 | 3 |
| 1978 | 8 |
| 1979 | 5 |
| 1980 | 5 |
| 1981 | 6 |
| 1982 | 2 |
| 1983 | 10 |
| 1984 | 11 |
| 1985 | 4 |
| 1986 | 4 |
| 1987 | 7 |
| 1988 | 5 |
| 1989 | 9 |
| 1990 | 7 |
| 1991 | 6 |
| 1992 | 9 |
| 1993 | 6 |
| 1994 | 4 |
| 1995 | 6 |
| 1996 | 8 |
| 1997 | 8 |
| 1998 | 5 |
| 1999 | 7 |
| 2000 | 14 |
| 2001 | 20 |
| 2002 | 16 |
| 2003 | 31 |
| 2004 | 24 |
| 2005 | 28 |
| 2006 | 41 |
| 2007 | 32 |
| 2008 | 44 |
| 2009 | 40 |
| 2010 | 24 |
| 2011 | 38 |
| 2012 | 42 |
| 2013 | 44 |
| 2014 | 42 |
| 2015 | 52 |
| 2016 | 52 |
| 2017 | 42 |
| 2018 | 33 |
| 2019 | 53 |
| 2020 | 55 |
| 2021 | 44 |
| 2022 | 52 |
| 2023 | 7 |